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WHO child growth standards in context: The Baby-bod Project - observational study in Tasmania


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Jayasinghe, S ORCID: 0000-0001-8805-385X, Herath, MP, Beckett, JM ORCID: 0000-0002-2911-0313, Ahuja, KDK ORCID: 0000-0002-0323-4692, Byrne, NM ORCID: 0000-0001-5310-6640 and Hills, AP ORCID: 0000-0002-7787-7201 2021 , 'WHO child growth standards in context: The Baby-bod Project - observational study in Tasmania' , BMJ Paediatrics Open, vol. 5, no. 1 , pp. 1-7 , doi: 10.1136/bmjpo-2021-001123.

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Objective: This research evaluated (1) differences in body size and composition of Tasmanian infants at birth and 3 and 6 months postpartum compared with WHO child growth standards and (2) body composition changes in Tasmanian infants at the extremes of the weight-for-length (WFL) spectrum.Design: Observational study.Setting: A hospital in Northern Tasmania, Australia.Patients: 315 healthy infants (~90% Caucasian) born between 2017 and 2019 in Tasmania.Interventions: Body composition and anthropometric measures at 0, 3 and 6 months.Main outcome measures: Growth characteristics at birth and growth trajectories from 0 to 6 months were compared against WHO child growth standards for 0-2 years.Results: Overall, growth of Tasmanian infants in the first 6 months of life was similar to the global prescriptive standards. Trajectories of fat mass (FM) and fat-free mass (FFM) accrual in infants from the extremes of the size spectrum appear to converge at the 6-month time point. Infants in the lower extremity demonstrated the most precipitous accrual in percentage FM (and the steepest decline in percentage FFM), compared with all other infants.Conclusion: No significant deviations of growth were observed in Tasmanian infants from 0 to 6 months in comparison to the WHO prescriptive growth standards. Infants below the third percentile WFL showed the most precipitous increase in FM accretion. Periodic comparisons local infants with global standards will enable identification of significant deviations from optimal growth patterns.

Item Type: Article
Authors/Creators:Jayasinghe, S and Herath, MP and Beckett, JM and Ahuja, KDK and Byrne, NM and Hills, AP
Keywords: growth standards, body composition, infant growth
Journal or Publication Title: BMJ Paediatrics Open
Publisher: BMJ Publishing Group
ISSN: 2399-9772
DOI / ID Number: 10.1136/bmjpo-2021-001123
Copyright Information:

© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. This is is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See:

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